1E42

Beta2-adaptin appendage domain, from clathrin adaptor AP2


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.70 Å
  • R-Value Free: 0.246 
  • R-Value Work: 0.196 

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This is version 1.1 of the entry. See complete history


Literature

The Structure and Function of the Beta2-Adaptin Appendage Domain

Owen, D.J.Vallis, Y.Pearse, B.M.F.Mcmahon, H.T.Evans, P.R.

(2000) EMBO J 19: 4216

  • DOI: 10.1093/emboj/19.16.4216
  • Primary Citation of Related Structures:  
    1E42

  • PubMed Abstract: 
  • The heterotetrameric AP2 adaptor (alpha, beta 2, mu 2 and sigma 2 subunits) plays a central role in clathrin-mediated endocytosis. We present the protein recruitment function and 1.7 A resolution structure of its beta 2-appendage domain to complement those previously determined for the mu 2 subunit and alpha appendage ...

    The heterotetrameric AP2 adaptor (alpha, beta 2, mu 2 and sigma 2 subunits) plays a central role in clathrin-mediated endocytosis. We present the protein recruitment function and 1.7 A resolution structure of its beta 2-appendage domain to complement those previously determined for the mu 2 subunit and alpha appendage. Using structure-directed mutagenesis, we demonstrate the ability of the beta 2 appendage alone to bind directly to clathrin and the accessory proteins AP180, epsin and eps15 at the same site. Clathrin polymerization is promoted by binding of clathrin simultaneously to the beta 2-appendage site and to a second site on the adjacent beta 2 hinge. This results in the displacement of the other ligands from the beta 2 appendage. Thus clathrin binding to an AP2-accessory protein complex would cause the controlled release of accessory proteins at sites of vesicle formation.


    Organizational Affiliation

    MRC Laboratory of Molecular Biology, Hills Road, Cambridge, CB2 2QH, UK.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
AP-2 COMPLEX SUBUNIT BETAA, B258Homo sapiensMutation(s): 0 
Gene Names: AP2B1ADTB2CLAPB1
UniProt & NIH Common Fund Data Resources
Find proteins for P63010 (Homo sapiens)
Explore P63010 
Go to UniProtKB:  P63010
PHAROS:  P63010
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 5 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
DTD (Subject of Investigation/LOI)
Query on DTD

Download Ideal Coordinates CCD File 
C [auth A], H [auth B]DITHIANE DIOL
C4 H8 O2 S2
YPGMOWHXEQDBBV-IMJSIDKUSA-N
 Ligand Interaction
GOL
Query on GOL

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G [auth A], O [auth B]GLYCEROL
C3 H8 O3
PEDCQBHIVMGVHV-UHFFFAOYSA-N
 Ligand Interaction
NI
Query on NI

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L [auth B]NICKEL (II) ION
Ni
VEQPNABPJHWNSG-UHFFFAOYSA-N
 Ligand Interaction
CL
Query on CL

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E [auth A], F [auth A], M [auth B], N [auth B]CHLORIDE ION
Cl
VEXZGXHMUGYJMC-UHFFFAOYSA-M
 Ligand Interaction
MG
Query on MG

Download Ideal Coordinates CCD File 
D [auth A], I [auth B], J [auth B], K [auth B]MAGNESIUM ION
Mg
JLVVSXFLKOJNIY-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.70 Å
  • R-Value Free: 0.246 
  • R-Value Work: 0.196 
  • Space Group: C 1 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 97.04α = 90
b = 124.59β = 124.18
c = 67.64γ = 90
Software Package:
Software NamePurpose
REFMACrefinement
MOSFLMdata reduction
SCALAdata scaling
SHARPphasing

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2000-08-21
    Type: Initial release
  • Version 1.1: 2011-08-24
    Changes: Database references, Derived calculations, Non-polymer description, Other, Structure summary